Home / 124,721.48-172,113.05-70,276.46

Finding the Fourth Proportional to 124,721.48, 172,113.05 and 70,276.46

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Solution

The fourth proportional to 124,721.48, 172,113.05 and 70,276.46 is: 96,980.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,721.48 : 172,113.05 = 70,276.46 : x
  2. Step 2: Convert to fraction form
    124,721.48/172,113.05 = 70,276.46/x
  3. Step 3: Cross multiply
    124,721.48x = 172,113.05 × 70,276.46
  4. Step 4: Simplify right side
    124,721.48x = 12,095,495,188.93
  5. Step 5: Solve for x
    x = 12,095,495,188.93/124,721.48
  6. Step 6: Final answer
    x = 96,980.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.